SLIDING DOOR MECHANISM WITH HEIGHT ADJUSTABILITY

Description

TECHNICAL FIELD

[0001] The present invention essentially relates to roller mechanisms used in vehicles with sliding door and which allows carrying of the sliding door.

[0002] The present invention particularly relates to a roller mechanism which allows adjustment of sliding door in axis Z with respect to the vehicle body.KNOWN STATE OF THE ART

[0003] There are guides for providing movement of sliding door on vehicle body in vehicles with sliding door. There are roller mechanisms which allow movement of sliding door on these guides. In roller mechanisms, axis adjustments shall be made for adjusting the axial eccentricities and for closing the sliding door at correct position when sliding door connection is made.

[0004] For the roller mechanisms existing in the known state of the art, it is difficult to make adjustment in axis Y horizontally and in axis Z orthogonally. When an adjustment is made in an axis, the adjustments in the other axis may deteriorate and adjustment has to be made again. Since some adjustment mechanisms have a complex structure, production costs are excessive, and the assembly of parts becomes very difficult.

[0005] In the patent document with number JP2006200216 filed in Japan and existing in the known state of the art, it has been described that there is a slot hole which allows adjustment of the roller mechanism in Y-axis. In the patent document, there is no solution related to making adjustment in Z-axis.

[0006] In the patent document with number JPH08268074 existing in the known state of the art, a roller mechanism is described which has a hole in the form of slot and which allows making adjustment in Y-axis. In this patent application, no solution is presented related to making adjustment in Z-axis.

[0007] In the utility model application with number CN201849295 filed in China and existing in the known state of the art, a roller mechanism embodiment is described having adjustability in axis Y in a similar manner. However, there is no data related to making adjustment in Z axis. In the application with number DE102015012641B3 an articulated connection for a motor vehicle door is described. However according to this document, a gap provided on the body bracket in order to release and fix the sleeve part is needed. Consequently in this document there is no solution to simplify the adjustable connection structure and reduce costs.

[0008] As a result, improvements are made in roller mechanisms, and therefore, new embodiments are needed which will eliminate the above mentioned disadvantages and which will bring a solution to the present systems.OBJECT OF THE INVENTION

[0009] The present invention relates to a roller mechanism, for meeting the above mentioned requirements and for eliminating all disadvantages and for bringing additional advantages.

[0010] The main object of the present invention is to provide an adjustment mechanism which allows adjustment of roller mechanisms, used in vehicles with sliding door and which carry sliding door, in axis Z and in axis Y.

[0011] An object of the present invention is to provide the adjustment mechanism, which allows adjustment in axis Z, on the axis pin which provides connection thereof with the body bracket and where the sandwich bracket where the rollers are connected gains rotational freedom. Another object of the present invention is to provide axis adjustment which is easily accessible and which is realized in a simple manner.

[0012] Another object of the present invention is to develop a compact adjustment mechanism which can operate in all roller mechanisms which carry sliding door.

[0013] In order to realize the above mentioned advantages and the advantages to be deducted from the detailed description below, the present invention is a roller mechanism for vehicles with sliding doors according to the features of claim 1.

[0014] The structural and characteristic properties and all advantages of the present invention will be understood in a more clear manner by means of the below mentioned figures and the detailed description written by making reference to these figures. Therefore, evaluation shall be made by taking into consideration these figures and the detailed description.BRIEF DESCRIPTION OF THE FIGURES

[0015] In order to understand the embodiment of the present invention and the advantages together with additional elements, they shall be evaluated together with the figures whose description is given below. Figure 1 is the isometric view of the subject matter roller mechanism. Figure 2 is the frontal view of the subject matter roller mechanism. Figure 3 is the B-B cross-sectional view of the subject matter roller mechanism. Figure 4 is the dismantled view of the subject matter roller mechanism. REFERENCE NUMBERS

[0016] 1. Roller mechanism 10. Body bracket 11. Axis pin 12. Bearing 13. Bushing 14. Adjustment bolt 15. Contra nut 16. Nut 17. Threaded hole 18. Connection hole 20. Sandwich bracket 21. Slot hole 22. Carrier roller 23. Guide roller 24. Pin 25. Lower bracket 26. Upper bracket DETAILED DESCRIPTION OF THE INVENTION

[0017] In this detailed description, the preferred embodiments of the subject matter roller mechanism (1) are explained with references to examples without forming any restrictive effect only in order to make the subject more understandable.

[0018] In Figure 1, the isometric view of the subject matter roller mechanism (1) is given, and in Figure 2, the frontal view of the subject matter roller mechanism (1) is given. In Figure 3, the B-B cross-sectional view of the subject matter roller mechanism (1) is given, and in Figure 4, the dismantled view of the subject matter roller mechanism (1) is given.

[0019] The roller mechanism (1), which carries the door, is fixed onto the vehicle body (not illustrated in the figures) by means of connection holes (18) provided on the body bracket (10). After the roller mechanism (1) is connected to the sliding door, adjustment must be made in axes Y and Z in order to seat the sliding door to the body completely. Axis Y adjustment is realized by means of slot hole (21) provided on the lower and upper brackets (25, 26) forming the sandwich bracket (20). Axis Z adjustment is realized on the axis pin (11) where the sandwhich bracket (20), connected to the carrier and to the guide rollers (22, 23), is connected to the body bracket (10) in a rotatable manner.

[0020] In assembly of the product, the guide rollers (23) are assembled to the sandwich bracket (20) by means of a pin (24). In a similar manner, the carrier roller (22) is assembled to the sandwich bracket by means of a pin (24).

[0021] The adjusment bolt (14), whose one end is in the form of a bolt head and whose inner side has a gapped structure, is connected to the threaded hole (17) provided on the body bracket thanks to the threads provided on the cylindrical external surface of said adjustment bolt (14). Afterwards, the contra nut (15) is connected to the adjustment bolt (14) which extends from the upper part of the threaded hole (17) provided at the body bracket (10). The bushing (13), produced preferably from teflon material, is passed through the holes provided at the lower and upper parts of the adjustment bolt (14), and afterwards, the bearing (12) part which comprises gap such that the axis pin (11) passes therethrough is passed through the bushing (13) part fixed from the lower and upper parts and bedded. This structure thereby formed is placed so as to be provided between the lower bracket (25) and the upper bracket (26) forming the sandwich bracket (20), and said lower and upper brackets (25, 26) provide fixation of the structure by means of the axis pin (11) passed through the slot hole (21) provided thereon and by means of a nut (16) part fixed to the upper part of the axis pin (11) which has a threaded structure.

[0022] It is apparent that various different fixation tools can be used instead of the nut (16) part used.

[0023] As the nut (16) connected to the axis pin (11) is loosened, the axis pin (11) can move in the slot hole (21) provided on the sandwich bracket (20). Thanks to this, adjustment is made at the desired level in axis Y and the movement in axis Y is fixed as the nut (16) is tightened again. After movement is fixed in axis Y, adjustment can also be made in axis Z.

[0024] Thanks to the bushing (13) and the bearing (12) parts provided in the structure, the adjustment bolt (14) can easily rotate in its own axis. Rotation of the adjustment bolt (14) in the clockwise direction or in the counter-clockwise direction depending on the direction of the threads provided in the structure of the adjustment bolt (14) moves the body bracket (10), connected by means of the threaded hole (17), downwardly or upwardly. Downward and upward movement of the body bracket (10) provides making height adjustment of the sliding door (not illustrated in the figures) in axis Z. After adjustment is made at the desired level, the contra nut (15) is tightened and the movement in direction Z is fixed. Some screw locking adhesives can be preferred for preventing loosening of the used bolt-nut embodiments due to the vibrations which may occur in the vehicle.

Claims

1. A roller mechanism (1) for vehicles with sliding doors, the roller mechanism comprising a body bracket (10) which provides connection with the sliding door by means of the connection holes (18) existing in the structure thereof and which provides carrying of the sliding door; and a sandwich bracket (20) connected to said body bracket (10); said roller mechanism (1) provides driving of the sliding door thanks to the carrier roller (22) and the guide roller (23) connected to said sandwich bracket (20) by means of pins (24), wherein said roller mechanism (1) further comprises: - to enable adjustment in axis Z, at least one adjustment bolt (14) connected to a threaded hole (17) provided on said body bracket (10) and whose outer surface has a threaded structure and whose inner surface is gapped and having a bolt head which facilitates tightening from outside, - two bearings (12) which provide free rotation of the adjustment bolt (14) by means of passing through two ends of said adjustment bolt (14), namely the bottom and top ends thereof, - at least one contra nut (15) connected to said adjustment bolt (14) and which provides fixation of the adjustment made in direction Z and which contacts the body bracket (10) when tightened, wherein - said sandwich bracket (20) comprises a lower and an upper brackets (25, 26), and a slot hole (21) is provided on the lower and upper brackets (25, 26), - the adjustment bolt (14), the bearings (12), and the contra nut (15) are arranged inside the brackets (25, 26) of the sandwich bracket (20), - to provide rotational freedom to the sandwich bracket (20) and to keep the other parts together the roller mechanism (1) contains at least one axis pin (11), whose one end is threaded, - each bearing (12) comprises a gap such that said axis pin (11) passes therethrough, - - a bushing part (13) is passed through the holes provided at the lower and upper parts of the adjustment bolt (14), and the bearings (12) are passed through the bushing part (13) fixed from the lower and upper parts and bedded, - the axis pin (11) further passes through the adjustment bolt (14), threaded hole (17), contra nut (15), and the slot holes (21) that are on the sandwich bracket (20), - to enable fixation of the axis pin (11), the rolling mechanism (1) further comprises at least one nut (16) which exerts pressure by contacting the upper bracket (26) of said sandwich bracket (20).

2. The roller mechanism (1) according to claim 1, wherein said bushing (13) is made of teflon material.